Door-hanger.



R. C. MclNTOSH.

DOOR HANGER.

APPLICATION FILEDJULYZZ. 1915- Patented May 15, 1917.

IN VEN TOR.

ROBERT C. MOINTOSH, OF PLAINFIELD, NEW JERSEY.

Specification of Letters Patent.

noon-Banana.

Patented May 15, 1917.

Application filed July 22, 1915. Serial No. 41,318.

To all whom it may concern: Be it known that I, ROBERT C. MGINTOSH, a citizen of the United States, residing at 25 Willow avenue, Plainfield, in the county of Somerset and State of New Jersey, have invented a new and useful Door-Hanger, of which the following is a specification.

My invention relates to improvements in the means of controlling the operation of a sliding door and has particular reference to the door of a railway freight, express and baggage car.

The primary object of the same is to provide a hanger of the character described which is constructed in such a manner as to normally hold the door stationary in any position along the track, thus preventing the door from unnecessarily shifting, so that it can only be moved through the medium of manually operated lifting mechanism.

A secondary object is to provide a door with manually operated means acting on only one hanger and one supporting roller used in conjunction with a hanger of any other design and any other supporting roller, for lifting the hanger casing and the brake appliance off of the track on to both supporting rollers, so that the door can be freely moved along the track.

A further object is to provide means for independently operating the door mecha nism either from the loading platform level or track level.

. I attain these objects by the mechanism illustrated in the accompanying drawing, in which- Figure 1 is a front view of the entire mechanism with the exception, of the front of the hanger casing which is shown in section, when the device is in a position to allow the door to be freely moved along the track; Fig. 2 is .a similar view of the upper part of the mechanism when the device holds the door stationary in any position along the track; and Fig. 3 is a vertical cross section of the mechanism as indicated by the arrowpoints in Fig. 2.

Similar numbers refer to similar parts throughout the several views.

My improvement operates on only one hanger and one supporting roller and can be used in conjunction with any other hanger and any other supporting roller, if such other supporting roller is arranged to run on a track secured to the side of the car acro s the op of the doorpening,

The hanger casing 6 is attached to the car door near the top by bolts 5 and extends the entire width thereof. The back part of this hanger casing to which the lugs 4 are attached, comes in contact with the top surface of the track 14, and the-bottom of the lugs 24 do likewise, thus forming the brake appliance which holds the door stationary. This hanger casing is slotted in order -to allow the vertical sliding bar 7 to slide freely up and down in slot 17. Pin 16 is fastened securely through the hanger casing 6. Bell'crank l which turns freely on the pin 16, is attached at one end by roller pin 2 to the vertical sliding bar 7, is fulcrumed at pin 16 and a clevis containing the supporting roller 3 is at the other end of this bell crank. The supporting roller 3 rests on track 14. The vertical sliding bar 7 has two roller pins 13 attached, which operate within the rocker cams 8. This bar has two rectangular slots 15 to enable the bar to slide freely up and down about pins 11, and is held in line by the lugs 1( on brackets 9. There are two operating levers 12, one of which can be operated'from the loading platform level and the other from the track level. The two operating levers 12 turn on pins 11 and have handgrips attached to one end and on opposite ends fromthe handgrips are the rocker cams 8., These handgrips also serve as handles for moving the door along the track 14: when the brake mechanism has been released.

The operation of the device is as follows: Assuming that the door is stationary as in Fig.2 and it is desired to move the same along the track, either handgrip of the two operating levers 12 may be pushed or pulled up in either. direction to such position as to make the rocker cam 8 engage the roller pin 13 thereby pulling the vertical sliding bar 7 downward, thereby operating the bell crank 1, thereby causlng the supporting-100,

move the door to any position along the 7 track 1 1.

When the handgrip of the operating lever 12 is released the weight of the door and the weight of the handles will always automatically bring the device back to its stationary p tion a in F g- 2, s th t h m han m i will hold the door stationary at any posi- I principally aim at providing a door mechanism for a freight, express and baggage car, my device can conveniently be used on other structures such' as barns, warehouses or storehouses.

I claim:

1. The combination with a sliding door, hanger casing attached at the top thereof, of two operating levers pivotally connected to said door, of a handgrip at one end and rocker cam at other end of each of said operating levers, of a vertical connecting sliding bar, of two roller pins attached to said bar and operating within said rocker cams, of a bell crank pivoted at one end to said bar and carrying at other end the journal for one supporting roller, of a track, of one supporting roller adapted to travel thereon, of a palr of lugs rigidly fixed to said hanger casing; said lugs actuated by the lifting of said door to clear said track and by the lowering of said door to engage the top surface of said track, thereby permitting and preventing honzontal motion of the door; manually operated means for independently actuating said supporting roller from either the loading platform level or the track level whereby said supporting roller is depressed and caused toengage sald track and whereby the hanger casing and lugs attached thereto are simul taneously lifted clear of said track; and means actuated by the lifting of the hanger casing and lugs -from said track to permit of sliding motion and actuated by the lowering of the door by gravity for again holdingthe door against sliding motion on;

said track, all substantially as set forth, for the purpose specified.

2. The combination, with a sliding door, a hanger casing attached thereto, of a track, of one supporting roller adapted to travel thereon and attached to a bell crank, of a bell crank pivotally connected to said hanger casing, of a vertical connecting sliding bar pivoted at one end to said bell crank, of two roller pins attached to said bar each operating within a rocker cam, of two operating levers pivotally connected to said door, of a handgrip at one end and a rocker cam at other end of each of said lever s:

manually operated means for independently,

actuating said supporting roller from either the loading platform level or the track level, substantially as shown, for the purpose specified.

3. The combination with a sliding door, a hanger casing attached thereto, of a track, of one supporting roller adapted to travel thereon and attached to a bell crank, of a bell crank pivotally connected to said hanger casing, of a verticalconnecting sliding bar pivoted at one end to said bell crank,

of two roller pins attached to said bar each operating within a rocker cam, of two operating levers pivotally connected to said door, of a handgrip at one end and a rocker cam at other end of each of said levers, of two brackets with stationary lugs fastened to each to act as guides for said vertical connecting sliding bar; manually operated means for independently actuating said supporting roller from either the loading platform level or the track level, 'substantially as shown, for the purpose specified.

ROBERT C. MGINTOSH. Witnesses:

Y. PIERRE BRUNDIN, RUssnLL W. Ross. 

